A family has two male children one brother has a straight thumb a straight thumb while the other brother has a bent thumb what causes this difference

In what form is the energy that is absorbed by plants' leaves?

Specialized cells are formed when cells differentiate. a. True b. False?

A compound that prevents the separation of the homologous chromosomes in anaphase I is being studied. Which of the following questions can be best answered during this study

What is the role of the dna polymerase in dna replication apex?

What role does the overproduction of organisms play in natural selection?

Unlike bryophytes, ferns A. have vascular tissue. B. exhibit alternation of generations. C. utilize photosynthesis. D. have to get water from the environment.

Modern cell theory is best described as being based on

The internal iliac arteries supply blood to the A. diaphragm. B. urinary bladder and rectum. C. lower leg. D. spleen. E. reproductive organs.

What cells are made from already existing cells

How is mitosis different in plants and animals? A. In animals, the cell membrane pinches together. B. In plants, the DNA is one circular chromosomes. C. In plants, there are no sister chromatids. D. In animals, a new cell wall forms.